<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>app template</title>
</head>
<body>
{{content}}

<p> {{ students.0  }}</p>
<p> {{ students.0.3  }}</p>
{#  -- {{ students[0]  }} 不能使用下标  #}
<p> {{ num | add:'10' }}</p>

</body>
</html>
